James Hetfield admits he isn't always in the right frame of mind for a gig and says he relies on the audience to help him through the show.
The Metallica frontman says he makes eye contact with a member of the crowd whenever he needs a boost – and adds that the trick never fails. Watch the full interview below.
He tells Hitradio 03: "I mean, we're all human, and sometimes we feel very communicative and sometimes we don't. But most of the time, if I'm not feeling good and then we get up on stage, I just look at somebody in the eye and just say, 'Hey, I need your help tonight.'
"I mean, I'm not asking them directly, but through the eyes I'm asking them, 'I need your help.' And they give it to me, somehow."
Despite the backlash, Stephen Hill thinks Metallica headlining Glasto is a positive thing
Campaigners call for band to be binned over Hetfield's hunting hobby
All the info about your new Metallica posters
Lords Of Summer available to buy via iTunes
Metallica have hinted that they’ll be unveiling a brand new track at a show this coming weekend
How Metallica had the last laugh at Glastonbury
Blodwyn Pig and former Jethro Tull man gathers host of musicians for upcoming solo blues album
Drummer Benante says previous effort Worship Music has inspired the direction taken with follow-up
Watch trailer for album's 40th anniversary reissue
GnR Guitarist ran out of patience with trying to secure big names for solo album